gpuArray not working in matlab!

I have matlab 2014b running on my Ubuntu 14.04 LTS 64bit, Nvidia and CUDA (6.5) drivers are the newest. When I use gpuArray I get the following error: "Error using gpuArray The CUDA runtime failed to initialize correctly. This can occur with some older CUDA drivers."

I tried everything but nothing helped. Please help me with this matlab bug.

[Michal]

I can confirm that.

Same problem with MATLAB R2014b on Ubuntu 14.04 with default nvidia-331 proprietary driver.

Looks like MATLAB r2014b does not support Ubuntu 14.04!!??

[Edric Ellis]

What does

parallel.internal.gpu.CUDADriverVersion

return? Also, could you try running

version -modules

and posting any lines that match libcuda.so.

[Dariosh]

The commands "parallel.internal.gpu.CUDADriverVersion" and "version -modules" is not possible to run on a system with MCR only. Linux server 64-bit without any x-server og display manager.

Answer 1

[Zachary Taylor]

I had a similar issue after ubuntu updated to the nvidia-331 driver today. However the issue went away after I ran matlab with sudo once. I'm guessing it needed permission to modify a file after the driver update.

Answer 2

[Dariosh]

The problem solved by removing and reinstalling the CUDA driver. It is working now. No changes in driver and it is the same driver.

parallel.internal.gpu.CUDADriverVersion: ans = 340.29

Thanks!

Answer 3

[TJ]

make sure you have the paths set properly in your .bashrc file (or similar .cshrc file). export CUDA_HOME=/usr/local/cuda export LD_LIBRARY_PATH=${CUDA_HOME}/lib64 PATH=${CUDA_HOME}/bin:${PATH} export PATH